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Related Experiment Videos

Endogenous and ectopic gland induction by FGF-10.

V Govindarajan1, M Ito, H P Makarenkova

  • 1Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, 77030, USA.

Developmental Biology
|August 31, 2000
PubMed
Summary

Fibroblast growth factor-10 (FGF-10) is essential for initiating ocular gland development. FGF-10's presence is sufficient to induce gland formation, while its absence prevents it.

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Area of Science:

  • Developmental biology
  • Molecular biology
  • Ophthalmology

Background:

  • Fibroblast growth factor-10 (FGF-10) is a key signaling molecule during embryonic development.
  • Ocular gland development involves complex signaling pathways.
  • The specific role of FGF-10 in ocular gland morphogenesis was previously unclear.

Purpose of the Study:

  • To investigate the necessity and sufficiency of FGF-10 in initiating ocular gland morphogenesis.
  • To determine the role of FGF-10 during normal ocular development.

Main Methods:

  • Analysis of FGF-10 expression patterns during ocular development.
  • Generation and analysis of FGF-10 null fetuses.
  • Induction of ectopic ocular glands via lens-specific FGF-10 expression.

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Main Results:

  • FGF-10 is expressed in the perioptic mesenchyme adjacent to developing Harderian and lacrimal glands.
  • FGF-10 null fetuses lacked lacrimal and Harderian glands.
  • Lens-specific FGF-10 expression induced ectopic ocular glands in the cornea.

Conclusions:

  • FGF-10 is both necessary and sufficient for initiating ocular gland morphogenesis.
  • FGF-10 acts as an inductive signal crucial for the formation of ocular glands.